See the domains Google treats as sources for entity facts.
Trusted sources for entity facts
Dataset: 62,202 isReference domains |
entities
Proprietary analysis of Google's entity validation patterns across the Knowledge Graph.
Where these domains come from
1,738,093
Domains monitored
62,202
isReference domains
3.58% qualify
23,295,240
URLs monitored
75,417,155
Entities tracked
💡 Even Small Niche Domains Have isReference Authority
Examples from our dataset (December 2025):
| kalicube.com | 21 entities |
| searchengineland.com | 11 entities |
| jasonbarnard.com | 86 entities |
| searchenginejournal.com | 270 entities |
| entrepreneur.com | 1,292 entities |
| forbes.com | 2,823 entities |
Your niche-specific domains may have similar authority in your category.
Top 100 isReference Domains for All Entity Types
| Rank | Domain | Entity Count |
|---|---|---|
| 101+ | 62,102 additional niche-specific domains in full dataset covering 75,417,155 additional entities | |
Why This Data Matters
Google validates entity information through patterns of corroborating mentions across trusted domains. This list shows where Google recognizes all entity types - but here's the catch: entity authority is extremely niche-specific.
Entity Validation at Scale
Google's Knowledge Graph requires consistent entity recognition across validated domains.
- Only 3.58% of domains (62,202 out of 1,738,093) qualify as isReference
- Brands typically need ~30 entity-validated url for a stable Knowledge Panel
- Each niche has unique entity authority patterns
- Generic "authority lists" miss 95%+ of niche-specific opportunities
Recommended reading
Free. Less than 5 minutes.